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The Case for a Hot Early Earth Climate

A compelling case for a hot Archean (50-70 deg C) (And early Proterozoic aside from the Huronian) :. Sedimentary chert oxygen and silicon isotopic record from the same samples and evidence for nearly constant seawater O18 /O16 ratio going back into the Archean (even the Hadean?).Knauth, L.P.

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The Case for a Hot Early Earth Climate

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